Granted Patent
Utility
US 4,746,091 · App. 06/876,011
Constant force suspension system
Inventor:
Irwin G. Baker
Patented Case
View Patent ↗
Granted: May 24, 1988
Filed: Jun 19, 1986
Inventor
Irwin G. Baker
Assignee (at issue)
Hughes Aircraft Company
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.